Re: errposition
Tom Lane <tgl@sss.pgh.pa.us>
From: Tom Lane <tgl@sss.pgh.pa.us>
To: John Naylor <johncnaylorls@gmail.com>
Cc: PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>
Date: 2026-05-08T04:32:54Z
Lists: pgsql-hackers
John Naylor <johncnaylorls@gmail.com> writes: > In doc/src/sgml/sources.sgml under "available auxiliary routines for > ereport", we have > "errposition(int cursorpos) specifies the textual location of an error > within a query string. Currently it is only useful for errors detected > in the lexical and syntactic analysis phases of query processing." > ...but I don't see that function used that way. It seems this should > be parser_errposition instead. I'll go make it so unless someone tells > me I'm missing something. errposition is the underlying function exposed by elog.c, and that is what this documentation is intending to document. parser_errposition is a wrapper that is specific to usages in src/backend/parser/. It might be (I didn't check) that all existing calls to errposition go through parser_errposition, but that seems like a happenstance not a reason to contort the documentation. regards, tom lane